diff --git a/quic/core/quic_packet_reader.cc b/quic/core/quic_packet_reader.cc
index f03aa6d..d2dfd22 100644
--- a/quic/core/quic_packet_reader.cc
+++ b/quic/core/quic_packet_reader.cc
@@ -86,7 +86,7 @@
     DCHECK_LE(kMaxOutgoingPacketSize, packets_[i].iov.iov_len);
     msghdr* hdr = &mmsg_hdr_[i].msg_hdr;
     hdr->msg_namelen = sizeof(sockaddr_storage);
-    DCHECK_EQ(1, hdr->msg_iovlen);
+    DCHECK_EQ(1u, hdr->msg_iovlen);
     hdr->msg_controllen = kCmsgSpaceForReadPacket;
     hdr->msg_flags = 0;
   }
diff --git a/quic/core/quic_stream_test.cc b/quic/core/quic_stream_test.cc
index d1b442e..b9d97a1 100644
--- a/quic/core/quic_stream_test.cc
+++ b/quic/core/quic_stream_test.cc
@@ -1006,7 +1006,8 @@
   // Buffered data size < threshold, ask upper layer for more data.
   EXPECT_CALL(*stream_, OnCanWriteNewData()).Times(1);
   stream_->OnCanWrite();
-  EXPECT_EQ(GetQuicFlag(FLAGS_quic_buffered_data_threshold) - 1,
+  EXPECT_EQ(static_cast<uint64_t>(
+                GetQuicFlag(FLAGS_quic_buffered_data_threshold) - 1),
             stream_->BufferedDataBytes());
   EXPECT_TRUE(stream_->CanWriteNewData());
 
@@ -1055,7 +1056,8 @@
 
   EXPECT_CALL(*stream_, OnCanWriteNewData()).Times(1);
   stream_->OnCanWrite();
-  EXPECT_EQ(GetQuicFlag(FLAGS_quic_buffered_data_threshold) - 1,
+  EXPECT_EQ(static_cast<uint64_t>(
+                GetQuicFlag(FLAGS_quic_buffered_data_threshold) - 1),
             stream_->BufferedDataBytes());
   EXPECT_TRUE(stream_->CanWriteNewData());
 
@@ -1139,7 +1141,8 @@
       }));
   EXPECT_CALL(*stream_, OnCanWriteNewData()).Times(1);
   stream_->OnCanWrite();
-  EXPECT_EQ(GetQuicFlag(FLAGS_quic_buffered_data_threshold) - 1,
+  EXPECT_EQ(static_cast<uint64_t>(
+                GetQuicFlag(FLAGS_quic_buffered_data_threshold) - 1),
             stream_->BufferedDataBytes());
   // Try to write slices2 again.
   EXPECT_CALL(*session_, WritevData(_, _, _, _, _)).Times(0);